later 1888-ca.1902 model with "let-in" handle shown.
earlier model had handle similar to No. 9.
ca.1902-1918 saw looked much like a No. 16 with different saw nut lay-out.
uncommon saw, especially the pre-1902 configurations.

I doubt Henry Disston would have put his name on this saw in his lifetime. My hands get blisters just looking at the handle. It's not to be confused with the more traditional D-100 sold earlier in the century (see above)